JP2010006194A - Level raising material for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a level raising material for an automobile capable of further reducing weight, by securing required strength corresponding to a partially applied concentrated load. <P>SOLUTION: This level raising material is arranged on a floor pan of the automobile, for forming a floor surface in the required height. The level raising material 1 is arranged over a front wall surface under a dashboard of a vehicle and a recessed part of the floor surface continuing with its front wall surface, for allowing an occupant sitting down on a seat to keep an easy posture by placing feet. The level raising material forms a hollow double wall structure integrated with a shock absorbing part 7 corresponding to the recessed part of the floor surface, a foot placing part 8 corresponding to the front wall surface under the dashboard, and a bending part 9 for connecting its mutual parts. A core material 12 is fused on a reverse surface of the foot placing part 8 in a hollow part 11 of the hollow double wall structure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a raising material for automobiles that is installed on a floor pan of an automobile to make the floor surface a required height.

  The floor raising material for automobiles, which is installed on the floor pan of an automobile to raise the floor surface to a required height, is interposed between the floor pan and the carpet to raise the floor surface, and is injection molded. The one made of foamed plastic having a foaming ratio of 20 to 45 times formed by the method described in JP-A-2001-347872.

  Japanese Laid-Open Patent Publication No. 2003-127796 discloses a floor raising material made of hard foamed plastic, which has a foam on the front surface and is formed with ribs or protrusions on the back side to have a light weight and high rigidity. It is described in.

Japanese Patent Application Laid-Open No. 2005-153757 introduces a blown hollow double-wall structure that is reinforced with thin slit ribs on the front side.
JP 2001-347872 A JP 2003-127796 A JP 2005-153757 A

  The floor of an automobile has a structure in which a floor raising material is installed on a floor pan and a carpet is laid on the floor raising material. However, the floor raising material may be partially subjected to a heavy load. In some cases, it has been pointed out that the destruction of the substrate such as a crack occurs due to the concentration of the load.

  Further, the raising material introduced in the above-mentioned Japanese Patent Application Laid-Open No. 2005-153757 has a disadvantage that the slit rib remains as a thin groove on the surface and the heel of the shoe is caught.

  In the floor raising material, if the overall strength is increased and the rigidity is increased, the base material can be prevented from being destroyed due to the concentration of the load. However, this kind of floor raising material is required to be lighter on the other hand. It is necessary to further reduce the weight while ensuring the strength of the steel. In addition, it is important to eliminate problems such as the shoe heel getting caught.

  Therefore, the present invention secures the required strength corresponding to the partially concentrated load by fusing the core material to the back surface of the front wall in the hollow portion of the hollow double wall structure constituting the raising material. In addition, it is an object of the present invention to provide a vehicle raising material that can achieve further weight reduction and can solve problems such as a shoe heel being caught.

  In order to achieve the above object, a vehicle raising material according to claim 1 of the present invention is a raising material for setting a floor surface to a required height by being installed on a floor pan of an automobile, with an interval. A hollow double-wall structure having opposing front and back walls is formed, and a core material is fused to the back surface of the front wall in the hollow portion of the hollow double-wall structure. is there.

  According to a third aspect of the present invention, there is provided a vehicle raising material according to a third aspect of the present invention, wherein the vehicle raising material is disposed over a front wall surface below a dashboard of a vehicle and a concave portion of a floor surface connected to the front wall. A footrest for mounting and maintaining a comfortable posture is integrated, an impact absorbing portion corresponding to a concave portion of the floor surface, a footrest portion corresponding to a front wall surface below the dashboard, and a bent portion connecting between them Is formed into a hollow double-wall structure, and a core material is fused to the back surface of the front and / or shock absorbing portion in the hollow portion of the hollow double-wall structure. It is characterized by being worn.

  In the vehicle raising material according to the present invention, it is preferable that a reinforcing member having a honeycomb structure is provided as a core material.

  According to the present invention, the required strength corresponding to the partially concentrated load is secured by fusing the core material to the back surface of the front wall in the hollow portion of the hollow double wall structure constituting the raising material. In addition, the weight can be further reduced, and problems such as a shoe heel being caught can be solved.

  The drawings illustrate an automotive raising material according to an embodiment of the present invention. FIG. 1 is a sectional view of the raising material, FIG. 2 is a sectional view showing another form of the raising material, and FIG. It is a partial side view which shows a use aspect.

  As shown in FIG. 3, the raising material 1 is used by being disposed over the front wall surface 4 below the dashboard 3 of the automobile 2 and the concave portion 6 of the floor surface 5 connected thereto.

  The raising material 1 is a hollow double wall structure, and connects the impact absorbing portion 7 corresponding to the recess 6 of the floor surface 5 and the footrest portion 8 corresponding to the front wall surface 4 below the dashboard 3. And a bent portion 9 that is formed in one piece.

  The raising material 1 is formed by forming the front end portion of the shock absorbing portion 7 as a bent portion 9 and the footrest portion 8 integrally with the shock absorbing portion 7 so as to rise obliquely upward from the bent portion 9. The portion 7 is fitted into the recess 6 of the floor surface 5 and the footrest portion 8 is fixed as necessary in contact with the front wall surface 4 below the dashboard 3. The shock absorbing part 7 has a plurality of reinforcing ribs 10 on its back wall.

  As shown in FIG. 1, in the hollow portion 11 of the raising material 1, a core material 12 is fused to the whole or a part of the back surface of the footrest portion 8 to reinforce the footrest portion 8. Is a honeycomb structure reinforcement. As shown in FIG. 2, the core material 12 may be fused to the back surface of the impact absorbing portion 7, and the core material 12 may be provided on both the footrest portion 8 and the impact absorbing portion 7 as necessary. 13 is a carpet. As shown in FIG. 3, the occupant 15 seated on the seat 14 of the automobile 2 can keep a comfortable posture by placing the foot 16 on the footrest 8 of the raising material 1.

  The core material 12 has a honeycomb structure having a large number of voids. As the honeycomb structure, a cylindrical structure composed of a large number of minute recesses, a honeycomb-shaped reinforcing structure composed of a large number of voids, and a hollow part. It is preferable that a rib extending between the walls facing each other is formed.

  Although the core material 12 is a resin core material, the resin material is a polyolefin (for example, polypropylene, high density) of a homopolymer or copolymer of olefins such as ethylene, propylene, butene, isoprene pentene, and methylpentene. Polyethylene), polyamide, polystyrene, polyvinyl chloride, polyacrylonitrile, acrylic derivatives such as ethylene-ethyl acrylate copolymer, polycarbonate, vinyl acetate copolymers such as ethylene-vinyl acetate copolymer, ionomers, ethylene-propylene-diene And other terpolymers, ABS resins, modified polyolefin oxide resins, and thermoplastic resins such as polyacetals. In addition, these may be used individually by 1 type, or may mix and use 2 or more types. In particular, among the thermoplastic resins, olefin resins or resins mainly composed of olefin resins, polypropylene resins or resins mainly composed of polypropylene resins have good weldability to the fiber layer, mechanical strength and moldability. It is preferable in terms of excellent balance. The resin core material may contain an additive. Examples of the additive include silica, mica, talc, calcium carbonate, glass fiber, carbon fiber, and other inorganic fillers, plasticizers, stabilizers, colorants, and charging agents. An inhibitor, a flame retardant, a foaming agent, etc. are mentioned.

  When a non-woven fabric, a woven fabric, a heat-weldable sheet, or a hot melt type adhesive is interposed between the back surface of the front wall of the raising material 1 and the core material 12 of the honeycomb structure to be fused thereto, the raising material The fusion strength of the core material 12 to the front wall of 1 is improved.

  The outer wall of the hollow double-wall structure of the raising material 1 is made of a thermoplastic resin such as an ABS resin, a modified polyphenylene oxide resin, a polycarbonate resin, a polyamide resin, a polystyrene resin, a polyethylene resin, or a polypropylene resin. If the raising material 1, the resin core material 12 and the inclusions are the same material, from the viewpoint of reinforcement by welding between the members, and because it is the same material in disposal, it is not necessary to separate the environment. friendly.

It is sectional drawing which illustrates the raising material for motor vehicles which concerns on one embodiment of this invention. It is sectional drawing which shows the other form of the raising material. It is a partial side view which shows the usage condition of a raising material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting material 2 Car 3 Dashboard 4 Front wall surface 5 Floor surface 6 Recessed part 7 Shock absorbing part 8 Foot rest part 9 Bending part 10 Reinforcement rib 11 Hollow part 12 Core material 13 Carpet 14 Seat 15 Passenger 16 Foot

Claims (4)

It is a raising material for installing on the floor pan of an automobile to make the floor surface the required height,
Forming a hollow double-walled structure having spaced front and back walls,
A raising material for automobiles, wherein a core material is fused to the back surface of the front wall in the hollow portion of the hollow double-wall structure.   2. The raising material for automobiles according to claim 1, wherein a reinforcing member having a honeycomb structure is provided as a core material. The raising material is arranged over the front wall surface below the dashboard of the vehicle and the recessed portion of the floor surface connected to it, and the footrest for the passenger sitting on the seat to put his feet on and keep an easy posture,
A hollow double wall structure in which a shock absorbing portion corresponding to a concave portion of the floor surface, a footrest portion corresponding to a front wall surface below the dashboard, and a bent portion connecting between them is integrated,
A raising member for automobiles, wherein a core part is fused to the back surface of the front side wall of either the footrest part and / or the shock absorbing part in the hollow part of the hollow double wall structure.   4. The raising material for automobiles according to claim 3, wherein a reinforcing member having a honeycomb structure is provided as a core material.

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